GOOD EVENING, I'M RICK txpñú÷0000 VAN HOOSE. AND I'M VICKI DORTCH. NEWLY RELEASED COURT DOCUMENTS IN THE CASE OF A MAN ACCUSED OF GIVING A WOMAN A FATAL DOSE OF INSULIN AT PARKWAY MEDICAL CENTER. A POLICE INTERVIEW SHOWS 34-YEAR-OLD DAVID SATTERFIELD CONFESS TO POLICE. W-L-K-Y'S MARK VANDERHOFF HAS BEEN LOOKING INVESTIGATING THE CASE FOR US. DAVID SATTERFIELD TURNED HIMSELF IN TO POLICE IN JANUARY. WLKY HAS OBTAINED SATTERFIELD'S VIDEO CONFESSION FOR THE 2007 MURDER OF MARCELLINE VALE.. ALONG WITH POLICE SUSPICIONS THAT SHE IS NOT HIS ONLY VICTIM. A NEWLY RELEASED POLICE INTERVIEW SHOWS 34-YEAR-OLD DAVID SATTERFIELD CONFESSING TO INJECTING 84-YEAR OLD MARCELLINE VALE AND TWO OTHER WOMEN WITH INSULIN AT A LOUISVILLE NURSING HOME. THE WOMEN WERE NOT DIABETIC. IT HAPPENED ON JULY 4, 2007 - WHILE SATTERFIELD WORKED AS A MEDICAL TECHNICIAN AT 'PARKWAY MEDICAL CENTER'. METRO POLICE INTERVIEWED SATTERFIELD ABOUT TWO OTHER WOMEN INJECTED BY INSULIN THAT NIGHT.. BOTH LATER DIED.. AS WELL AS THE DEATH OF A FOURTH WOMAN WHO DIED LATER THAT YEAR UNDER SIMILAR CIRCUMSTANCES. BUT AT THIS POINT HE'S NOT FACING ANY CHARGES CONNECTED TO THOSE THREE DEATHS. SATTERFIELD WAS CONSIDERED AN EARLY SUSPECT IN VALE'S DEATH.. BUT WAS NOT CHARGED UNTIL HE CONFESSED TO POLICE. SATTERFIELD TOLD POLICE HE HAS A TERMINAL ILLNESS.. HAD NO JOB AND MONEY.. AND WANTED A PLACE TO LIVE. BUT NEARLY THREE HOURS LATER, COMES A TWIST: SATTERFIELD IS CHARGED WITH MURDER. DETECTIVES TELL US THEY ARE STILL TRYING TO DETERMINE A MOTIVE FOR THE CRIME. MARK VANDERHOFF, WLKY NEWS THANKS MARK. DAVID SATTERFIELD IS LOCKED UP ON A 100- THOUSAND DOLLAR BOND.